Dr.Jeff
True Classic
Regarding rear shelf speakers. Some later models of X had those ovals cut out, others just had the shape stamped but not cut out. I don't know about the earlier models, the oldest one I've ever had was a 1500 '79. Regardless, there is very little room there for much of a speaker. And mounting something on top of the rear shelf also has drawbacks; possible obstruction of rear vision, and risk of injury in the event of a crash (especially if they are not secured properly, i.e. any sort of 'box' speaker).
Frankly I'm not completely convinced that the rear shelf is the best location for any speakers. But that's just personal preference.
Frankly I'm not completely convinced that the rear shelf is the best location for any speakers. But that's just personal preference.