Updating from 2003 mirror to newer model. Plug issues

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I have researched this and can't make any sense of it. I have a 2003 H2 I am putting a newer model passenger mirror on. I have no idea what year it came from. Is there any directions on how to do this? The posts I have found do not seem to apply to my application.

Both mirrors have 11 wires. Matching colors to colors is not going to work on more than one wire.

Old mirror black plug = 4 wires
Old mirror blue plug = 7 wires
New mirror black plug = 5 wires
New mirror white plug = 6 wires

Any help is appreciated.