I have had the x001 in my Dream Cruiser convertible for almost a year now and I do enjoy the unit. Now that I've added a Crossfire to my stable, I decided to go a little more audiophile this time.

I was lucky enough to come across a new in box Rockford Fosgate RFX-8250 from 2002. It is simply a rebranded Denon A1N, and according to the manual it has the following:
Audiophile components throughout
Dual 20-bit Platinum D/A converters
Full copper-plated chassis for superior noise rejection
Platinum finish metal alloy faceplate
Balanced 8V line outputs with dual mini-DIN connectors
Coaxial digital input
Metal alloy rotary encoder ****
Dual preamp outputs with double shielded cables and metal RCA connectors
Low impedance <50 ohms/5V preamp output
24 FM / 12 AM presets with auto memory store
Auxiliary RCA inputs
Backlit LCD display with clock
Switchable red/green illumination color
Mute function
Bass & treble controls +/- 12 dB @ 100 Hz & 10 KHz
100 dB dynamic range / 86 dB channel Separation
No built-in power - outboard amplification required

I'm going to run it though a Zapco I-Force Amp so I can use the balanced output. To access my I-pod content I plan on connecting a Harmon/Kardon Drive+Play to the head unit's AUX connection which has adjustable gain control. I'm now in the process of auditioning speakers. I think the unit will look awesome once it is installed. What I love is that everything that looks like brushed metal IS brushed metal, and the rotary control dial is metal also. Fortunately, one can set the lighting to green so it should blend nicely with the rest of the dash in the evening.

Here she is: