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General => Car audio => Topic started by: BobbyT on 03 July 2005, 21:20

Title: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 03 July 2005, 21:20

Hi, i am having trouble with the head unit in my mk1 golf gti! i have put in a jvc camilion head unit which i had in my last car, every time i turn it up to about 23 on a cd and about 24 on the radio it turns its self off and then comes on and then cuts out and this continues until you trun it down, now it seems to be getting worse, some times even level 19 on the radio will cut it out! its doing my head in, it worked fine in my last car! i have some jvc 6 by 9 s in the back and the standard poo speakers in the front! any ideas?? cheers rob

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Mr Blue on 03 July 2005, 22:54

its the wires at the back of the sterio. happend with my sony once.

go to halfords and buy new cable. then refund your sh!tty cable. :grin:


sorted :cool:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Organisys on 03 July 2005, 23:00

Either you are not getting enough current from the power wire, or the head unit is cutting out due to overheating or over current in the amp output stage. beef up the power supply wire. Check all speakers are 4ohm impedance, and maybe beef up the wiring on the 6x9s

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 04 July 2005, 11:10

i changed the wire to the 6 be 9's, its well chunky! so you think it could be the power wire?

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 04 July 2005, 11:12

Quote from: Baby Blue Mk2 on 03 July 2005, 22:54

its the wires at the back of the sterio. happend with my sony once.

go to halfords and buy new cable. then refund your sh!tty cable. :grin:


sorted :cool:

which wires do you mean? the speaker cable i use is well chunky stuff, do you  mean the power and earth like the other guy says?  :smiley:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Mr Blue on 04 July 2005, 11:18

the whole wire harness at the back mate.

comon you know yu want to :wink:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Organisys on 04 July 2005, 21:49

Beef up the power wire at least.

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 05 July 2005, 22:24

it seems beefy enough to be honest, could it be the battery?  :undecided:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Mr Blue on 07 July 2005, 15:46

comon funky! switch it with a halfords one. go on you know you want to :tongue:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 08 July 2005, 19:42

ok, ok! i will see what i can get hold of!  :smiley:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 10 July 2005, 20:50

sorted it! had to run a new power from the battery and put in a new earth! works fine now and the sound is far far better! cheers all!  :grin:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Mr Blue on 10 July 2005, 23:07

you still have to do the halfords scam for me. comon! :grin:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Organisys on 11 July 2005, 13:03

Please make sure that you have a fuse somewhere in your new live feed. You can buy an inline fuse holder.

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: BobbyT on 11 July 2005, 16:45

cheers for that but i have put one near the battery already!  :smiley:

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: silkyballs on 15 August 2005, 17:39

if i was you i would take it into a shop and have it looked at befor you blow it up all together dude!

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: ian007miles on 10 June 2007, 20:18

im having the same trouble same car same head unit wot wites did u change and wre did u erth if thanx ian

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: Heyho on 10 June 2007, 20:28

You can beef up the power wire all you want, but if the earth is not sufficient, you'll still have the same fault.
Check your earth connection, or better still, run a direct earth straight to chassis.  Obviously the main feed could be the cause, but people often overlook the earth - it's just as important.

Title: Re: head unit keeps switching its self off!! doing my head in!!
Post by: tommk3cab on 11 June 2007, 19:42

indeed heyho, the earth is essentialy a drainhole, if its blocked ( even slightly will matter) or cut off hows the power getting round the rest of the circuit?! very important!