Hi. I've got '92 155TS/8v with remus exhaust and squadra chip. Got a little problem with rearwindow heater and antenna amplifier- both are not working. I even bought a new relay for windowheater/timer, no help. It still burns fuses and doesent work. My radio signal is also very weak- so i guess that the amplifier is not working. Any ideas? Has anybody any suggestions for right size of tire? My car has intrax -45mm springs and sachs advanced shocks. I've got 7x16inch.rims with 205/50/16 et35. And even with two peple load on backseat hears annoying scraping. Is 205/45/16 any better?