Headunit stopped working

[afcbob]

Lastnight my headunit just stoped working only had it in a few days, so checked fuse the head unit fuse and the fuse under driver feet is fine. so any idea what it could be i check with my old headunit thats not working as well.

[russ-vdub]

get a dvm (digital volt meter) and check there is still power goin to the wiring harness where you plug your stereo into..

if there is no power there then hardware wire 12v volts, fused of course, straight from the battery and then you wont need to worry bout the cars internal wiring loom.. also you'll get a tad more umph from your hu.

[afcbob]

Ok will give it a try so would i just take a wire from the + in my car and run it to the head unit is that right.

[russ-vdub]

nah straight to the battery under the bonnet

[russ-vdub]

Sorry staight "FROM" the battery to the hu

[afcbob]

Thats what i ment straight from battery's + to the headunit, also does it mater what kind of wire i use.

[afcbob]

Was hoping to do this the day can anyone tell me if i got the above right please.

[afcbob]

Ok i run a wire with a 10amp fuse from battery to headunit nothing  . but when i had the + of to put the wire on there was heaps of white poweder around the + what is it and is that why it not work.

[russ-vdub]

wthe white stuff is just corrosion..dnt worry about it..clean it off with a wire brush, add some grease to the + connector and try again..

just thought i'd check, you obviously have the rest of the headunit wired up when your testing it yeh? it wnt work with just a positive, needs an earth, and the ignition live wired up aswel.

[afcbob]

Yeah rest is wired up but still nothing at all i have tried 3 head units now nothing.