trying to upgrade my 12' base. help if you can

[swalker2]

I just brought a 12' Lacrosse eAssist blah blah blah... I have had the tint installed and 22" Davins slapped on. 15" Solo-Baric L7 with a 1600w Crunch.
My issue now is that I have the small monitor with the 99' black screen and green letters. Reminds me of my old Motorola Timeport, Smh. So I want to upgrade to the OEM 7" touchscreen from the 13' because it has the Pandora and all the extra software. Does anyone know what is needed to make this happen?

 

[FJP]

Can't answer that question, but I'm curious as to the aAssist's MPG with larger wheels. What kind mileage drop did you notice? Thinking of moving up to larger diameter OEM wheels here. Thanks.

 

[swalker2]

I don't drive the car often but from the weekend strolls I think I've dropped from 28 to 23 mpg. But keep in mind I have 22" wheels. They are heavier then 20" thus the mileage is going to be different.

 

[CarbonBlackCXS]

Wow that's surprising. That's a significant drop in milage for a simple wheel swap heavier or not. In the past on other vehicles I've gone the other way from steel to lighter alloys and didn't record any change in gas milage. What's the new tire size?