The Student Room Group

Car radio wont turn on :(

Ive had the car on the drive for a few months while i was learning, it got an MOT now and its all ready to go except one thing - the radio/cd player wont turn on. Its dead as a dodo. Been pressing all the buttons and absolutely nothing happens :frown:

Everything else electrical is fine, put a new battery in when it was being checked over at the garage. Any simple things i could try?

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Reply 1
anything to do with the code? Tried pulling the radio backward and checking the connections at the back?
Reply 2
the faceplate seemed really loose so i took it off and re-attached it. its on nice and tight now but still nothing happens. should a dead battery really effect the radio? how shall i take it out to check the back? dont wanna mess anything up even more than it is lol
Reply 3
Original post by fudgeeyena
Should a dead battery really effect the radio?


No not at all. Even with a very low charge the battery should still support the radio.


Original post by fudgeeyena

how shall i take it out to check the back?


There are differnt ways to remove different radios. I could not suggest a way to remove it without seeing it first but most require special tools to remove them in order to deter theft.

Generally there is a block connector at the back with a clip to hold it securly in place so it's not as if it can fall out.

Anyway, it won't affect your mot test but obviously you want it to work.

It is (very remotely) possible that it has been damaged upon switchover of the battery. I would check the blade fuse for the radio, on most units this is in the back of the headunit, which means it needs to be removed to be checked.
(edited 13 years ago)
Reply 4
Original post by Pegasus2
No not at all. Even with a very low charge the battery should still support the radio.




There are differnt ways to remove different radios. I could not suggest a way to remove it without seeing it first but most require special tools to remove them in order to deter theft.

Generally there is a block connector at the back with a clip to hold it securly in place so it's not as if it can fall out.

Anyway, it won't affect your mot test but obviously you want it to work.

It is (very remotely) possible that it has been damaged upon switchover of the battery. I would check the blade fuse for the radio, on most units this is in the back of the headunit, which means it needs to be removed to be checked.


Sorry, it's already had the mot - we just got it back today and because I'm an 18 year old girl the first thing I noticed is the lack of music, lol. Do you think changing the fuse would help? I'm gonna try resetting the cd player first and maybe try around for a little while to see if it can 'warm' the cd player up as it hasn't been used in so long, then maybe change the radio fuse. Fingers crossed it's something simple
Reply 5
Changing the fuse will help if it's blown. Blade fuses are transparent and can be inspected to see if they still work or not.

If it was a coding issue, which it might be, the radio would come on and on the display or the facia display would ask you to enter the code.

Sadly 'warming it up' wont help since we left electrical valves behind a long time ago when the transistor was invented. :smile:

The other conclusion is that it might just not work anymore :frown:
Reply 6
Hey thanks for your help :smile:

There's literally nothing on the radio screen so I don't think it's a radio code issue. And the digital clock works, that wouldnt work if it was a radio code I needed would it? I'm going to change the fuse tomorrow when it's not raining and hopefully that will fix it.. Fingers crossed.

My uncle actually owned the car before me and the radio worked perfectly. It has been on the drive for a good few months though. Maybe it's just time for a new one!
Reply 7
Maybe its just knackered?

Halfords are/were selling a Clarion with MP3/DAB etc capability for less than £100 about 3 weeks ago. Might still be doing the offer, but as it was I fixed my current radio for £25 or so. Still thinking of buying a new one though..........
Reply 8
Original post by Riderz
Maybe its just knackered?

Halfords are/were selling a Clarion with MP3/DAB etc capability for less than £100 about 3 weeks ago. Might still be doing the offer, but as it was I fixed my current radio for £25 or so. Still thinking of buying a new one though..........


That is a possibility. But because it was working perfectly before we put it on the drive, I'm hoping it's just something easy to fix. Probably just wishful thinking :smile:
remember to check the car fuse box as well as the back of the stereo. Most cars have a fuse on the radio circuit in the fuse box. The fuse on the back of the stereo is mostly on aftermarket stereos as they are designed to be wired adhoc if needs be and often people bodge them on dodgy wiring.
Reply 10
Original post by warrenpenalver
remember to check the car fuse box as well as the back of the stereo. Most cars have a fuse on the radio circuit in the fuse box. The fuse on the back of the stereo is mostly on aftermarket stereos as they are designed to be wired adhoc if needs be and often people bodge them on dodgy wiring.


That's where I'm gonna look today - fuse box. What will the fuse on the actual stereo look like? I never even knew they had one lol. Was gonna pop to halfords and just buy a new one but if it's simple to fix then a) Its a waste of money and b) my new one probably wouldn't work either!
Reply 11
This is what the blade fuse looks like on the back of a radio/cdplayer. The car's internal fuse box will have many of these blade fuses, all numbered.
Ok, so here is the old Car 400 radio that came with my car when I bought it.



This is what the back looks like, the red line is the blade fuse. The black block connectors are for power etc and the silver connector on the left is for the aerial.


One side, or the top of it will be transparent and you will be able to see a thin peice of metal. In this case the top is transparent and you can see the peice of metal is not broken, this is good news. If it were broken I would need a new one :smile: The number '10' signifies the rating of the fuse, the current it can take before the wire inside melts and breaks the circuit, protecting your radio and wiring from blowing up/melting. In this case it is 10 Amps. The fuse may not nesicerily be red like this one.


Side view.
Original post by Pegasus2
x



Revising the same exam as me using the same book :pierre:


Edit: Balls, it looks similar to what im doing.
Reply 13
Original post by Oh my Ms. Coffey
Revising the same exam as me using the same book :pierre:


A2 Physics OCR B Spec. Also noticed you took Geog and Maths, which I did as well.

Not looking forward to Physics, my weakest subject by far, currently sitting on a high E. :/
Original post by Pegasus2
A2 Physics OCR B Spec. Also noticed you took Geog and Maths, which I did as well.

Not looking forward to Physics, my weakest subject by far, currently sitting on a high E. :/


OCR physics is a bit of beast to be fair, the last units an absolute monster unless you put loads of effort in.
Reply 15
Little update: popped the car to my uncles house because he owned it before me. He told me that he'd actually put the cd player in himself for my auntie (I'd assumed it for from the first owner). We checked the fuses and everything was fine so we're a bit stumped now. My last option is going to the garage that did the work on the car and asking our mechanic if he disconnected it for some reason as the immobiliser was playing up a bit before we took it.

I went to halfords today to have a look at new ones but now I know the cd player is practically unused I'm not keen on buying a new one incase that one doesn't work too. Let's just hope someone at the garage can sort it!
Get someone to check the connectors if it isn't the fuse... might just be a loose wire or the contacts isn't all that good.
I have the exact opposite problem, my car radio will turn on, but I can't put it on a different radio or the cd player, whenever you press any buttons nothing happens. The car is a S-reg fiesta, but when I first had it the radio/cd player worked fine so I'm a bit confused.
I have the same problem with my new Sony dab unit changed the wires over with the red and yellow had a spark from it took the system back got a new one with that in and still nothing I checked the fusses they are new
Reply 19
Original post by Gazz1234567890
I have the same problem with my new Sony dab unit changed the wires over with the red and yellow had a spark from it took the system back got a new one with that in and still nothing I checked the fusses they are new


Get an auto electrician to wire it.