I have searched the forums and I don't see a straight forward answer to downgrading the DSP amp to a regular amp. I have a 2004 4.4i. Here is what I know so far.

1. The DSP wire harness from the radio only has front speaker going to the amp while the regular amp requires front and back.
2. The DSP amp has 3 plugs where the regular one has 2.
3. I lose the sub-woofers when downgrading.

My questions:
1. Are the plugs the same type (Plug n Play)?
2. Do the amps put out the same power?
3. Where can I get one at a resonable price? RealOem to high, Junkyard maybe?
4. Any other details you would like to share.

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[Sold] 2004 X5 4.4i - Sterling Gray - Truffle Brown, Sport, Preminum, Rear Climate, DSP, Sirius, PDC, 132's (19 inch wheel), Comfort Seats
Dynavin, JL Audio Stealthbox, Alpine PDX-5 Amp