Instrument cluster bad or no?

[mdewii23]

The dealer told me that I needed a instrument cluster. So I brought the car home because there's no way I'm paying them $1600+ to put a new one in. I bought the Ross tech cable and a used cluster on Ebay. The problem is that when I put my old cluster back in to pull info from it the car started (no immobilizer light). So I scaned the errors with my new cable and found this. It don't sound like the cluster it sounds to me like the reader coil? Any ideas?
Thanks
Mike

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Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8E0 920 950 L
Component: KOMBI+WEGFAHRS. RB4 D35
Coding: 03200
Shop #: WSC 12345
VCID: 326C82E7FE3CC6AE9B-5072
WAULC68E83A162106 AUZ6Z0B0253212

3 Faults Found:
01128 - Immobilizer Pickup Coil (D2)
35-10 - - - Intermittent
01176 - Key
07-10 - Signal too Low - Intermittent
01304 - Radio
49-00 - No Communications

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[crazyquik22023]

Do you have an aftermarket radio? If the problem went away after removing the cluster and then installing it again, I am betting one or more of the pins on the cluster was not making contact somehow with one of the plugs, especially since when you scan the cluster now the immobilizer and key faults are intermittent. Possibly a bent or dirty pin or shorting wire on one of the connectors.