I think it's good advice. I'm batting 3 for 5 on DIYs. I successfully changed the siren/alarm, replaced cigarette lighter, identified parasitic draw and removed radio (friend installed new Kenwood). I failed on the speaker trim ring braking off 4 tabs....but think I've fixed with an epoxy (Plastex)....also made a tab for the front grille. I tried on the easiest headlight....and now the retainer clip is wedged back in housing...can see in front lens against a high beam fish eye. Ordered a hemostat to hopefully retrieve...and a spare Saab retaining clip. I'm a bit gun shy of screwing up something worse. My lights are all working but I occasionally get the indicator on the dash...so I'm going to replace all bulbs. I really don't see how anyone has the dexterity and clearance to replace the bulbs with headlamps in place.