Backup camera and NAV. Why ?
............ and before you begin swapping sound system head units you'll need to do some research - the original head unit is part of the TheftLock, content theft and serial data bus. Make a mistake and you open an electronic and electrical Pandora's Box.
For a good, accurate, fast NAV with lifetime free map updates look at a $179 Garmin dash mount from http://www.thegpsstore.com/
Study the Engines; Northstar forum and sticky posts. Worthwhile engine modification possibilities - even minimal - are slim and none. No aftermarket support and precious little demand for it. No, no "chips" either.
Which Eldorado do you have ? The 300 hp/3.71 final drive ETC or the 275 hp/3.11 final drive ESC ?
............ and before you begin swapping sound system head units you'll need to do some research - the original head unit is part of the TheftLock, content theft and serial data bus. Make a mistake and you open an electronic and electrical Pandora's Box.
For a good, accurate, fast NAV with lifetime free map updates look at a $179 Garmin dash mount from http://www.thegpsstore.com/
Study the Engines; Northstar forum and sticky posts. Worthwhile engine modification possibilities - even minimal - are slim and none. No aftermarket support and precious little demand for it. No, no "chips" either.
Which Eldorado do you have ? The 300 hp/3.71 final drive ETC or the 275 hp/3.11 final drive ESC ?
