sorry if this dragged on, this seemed to be the only thread that has been active in the last couple of months. But no aftermarket bodged installs, all OE kit, tv, phone, cd, nav all functioning normally. pulled out FSR to double check model numbers, put back in, did a parasitic drawer once current stabilised after computer shut down drawing 0.02 which seems negligible to me, nothing changed pulling fuses and relays. Don't worry I won't let it drag on, ill look for answer elsewhere.