is the factory radio a 1.5 din or something else? not seeing a whole lot of options out there. just looking for a decent system on the cheap for a 16 year old. i have a 2000 gmt-800, and years ago i got a double din bezel and painted it, etc. but looking for a cheaper option here and factory radio seems to be an odd size? i wont bug you with install questions, rather just looking for something that will fit in the hole and maybe be touchscreen and sync with his phone. want to stay under 150-200 on this. Thanks for any ideas!