Instrument Cluster haywire

[jessemack112]

Hi there,

I have just installed a sub and amp into my ute, which all works fine!
However, since doing this, my instrument cluster now doesn't work, the speed, revs, temp and fuel all don't work and the indicators on the cluster flash rapidly and the computer just displays my service reminder and doesn't move from there.
Also the car now has trouble starting, It used to start first time no worries but now takes a few shots.

Thanks in advance!

 

[jessemack112]

And now the battery has died, which has not happened previously

 

[Brett_jjj]

Sounds like somethings stuffed up when doing the stereo installation. Check all the wiring and connectors etc etc..