gaijin
GOLD Star
I had the exact question
This is their reply
Thank you for reaching out and for your order. If you were installing both you would just attach the Seat Jacker to the floor. Then attach the MMP bracket on top of the seat rail into the Seat Jacker using the provided hardware. Then the MMP will attach to the brackets.
I hope that helps and if I can help with anything else please let me know.
Have a great day!
Thanks again,
Deric
Thanks. Does that mean that there has to be a choice of whether to re-install the plastic seat trim pieces -OR- the MMP bracket, but not both?