Re: 2 questions about eclipse cd5000
You don't have to worry about turning off the internal amp on a Eclipse HU. The preouts are compleately isolated from the internal amplifier and will not give any added sound quality. Without a load on the internal amplifier (speakers) there won't be any added amperage used.
Eclipse web site has a chart explaining every feature that can be viewed with the sirius and the ipod.
Audio: Eclipse 8455 8 volt Head Unit
Eclipse sirius tuner
JL XR650CSi 6.5" components
Eclipse SA8394 3-way point source 6x9's with crossovers
Eclipse SW7304DVC (10")
Eclipse 3322 2 channel amplifier (320 RMS, 520max)
for the active titanium tweeters.
Eclipse PA5422 4 channel amplifier (480 RMS, 800 max)for front and rear components
Eclipse PA5422 4 channel amplifier (480 RMS, 800 max) for dual voice coil sub.