Installed everything in around 2-3 hours with no problems, even with my 2-1/2 year old daughter "assisting" in the passenger seat. Only hitches were with removing the bezel around the AC/radio (couple of minutes searching the forums to find out about running a fabric-covered screwdriver underneath and around the bezel fixed that), and finding out I needed a female RCA-to-1/8" Y-adapter for the GLI (easily sorted out with a trip to the Shack). Thanks, Jazzy, for a great product!