No you will not get a new unit, as they will say you hooked it up wrong and caused the issue and it's an old device (2 levels old)
I am quite sure this time they will tell you it will cost $250 minimum to fix the problem with the trans-diode relay chip. If you want us to fix it you must pay us in advance. Most people will run way with the chance of $250+ to fix a AVIC D1..
Are they charging you $70 per visit now? I had my D1 looked at for $70 in the Ohio facility, came back working fine.
Cheers and best of luck