Electrical issues

[jdm.itr]

Hey guys, I just upgraded my headunit and now all my electrics seem to be playing up,
- my speedo jumps up when ignition is in
- central locking (factory) and aftermarket alarm aren't working

I've tried unplugging the battery and resetting the alarm but still nothing..

[sleepingperformance]

Sounds like you have bridged wires accidently. Recheck your wiring, make sure all your connections are soldered and taped then go from there

[Batchy]

Sounds like you have bridged wires accidently. Recheck your wiring, make sure all your connections are soldered and taped then go from there

If you have soldered make sure you have not accidently melted the wires next to it as that can cause a bridge very easily.