10 pin to rca w/ lighter plug and 3.5mm

[califgolfer]

I have a cable for sale but do not know what use it has. On one end is a 10pin female connect alongside a cigarette (aux) lighter plug. On the other end are 2 male RCA jacks alongside a 3.5mm male jack. Can anybody enlighten me?

 

[Someone Somewhere]

Probably proprietary.