hi guys need little info
so i have 2008 range rover sport my nav and radio stopped working, also i was thinking instead fixing maybe to replace with some modern unit since some buttons are broken anyway
any suggestions of what unit works well in this car?

also my air suspention is not working and i always get light coming on
do i need a compressor? if yes what brand?

and what website has all the parts for our cars?

thanks in advance