Evening all.
On my 2003 IS300 Sports Cross, I've recently upgraded the OEM headunit to a JVC chap (very pleased). Had to bypass the amp to get this to work, which I now believe has rendered the sub in the boot (OEM fitted on IS300 S/Cross) not working....
Any thoughts on how to get the OEM unit working again ??
Any help much appreciated,
Regards
Rich.