Alpine HeadUnit Test (HELP!!!) please

[jaybee]

so just rig up a festoon bulb with tails.....?

I reckon having spoken to a mech that I've blown the amp circuit in the hu... He reckons there are two circuits in the hu... one which does the cd drive/eject mechanism and the other which is amp and lights etc.... He reckons that the previous owner had left so many mid air junctions in the wiring, just wrapped in insulator tape,that when I pulled out or pushed back in the hu it contacted the switched and battery leads which was enough to blow the radio fuse and also burn the hu amp circuit, but left the cd drive circuit intact.....

Ah well....!!

[Heyho]

Apart from sending 12v up the speaker wires, I don't see how you could destroy a headunit in that way.

As for testing, a bulb with a couple of wires is as good as a testlight, just not as convenient to use.  Good luck.