Heat will not stop

So I have had issues after issue four months and $1,700.00 later. I had it running but the screen on the console will not turn on, the radio does not work and the heat is blasting on high. I cannot control any of it!
Any ideas?
I had an after market automatic start removed, computer reprogrammed, keys reprogrammed, alternator, starter, battery, intake manifold redone, relay on the fuel pump and washed it! Lol