Correct... all via the harness. Click install link below for photos and functionality.

Hi

The F1x/3x/8x HK harness/LC2i to add an aftermarket amp to your OEM amp to power either a trunk sub or aftermarket underseat woofers is $150 shipped in the USA. International shipping is $30 extra; Import taxes responsibility of customer.





The LC2i active LOC is used in your particular HK OEM system due to the 30V+ peaks of the OEM amp woofer outputs. No remote turn on is possible with the OEM amp as all its outputs are Class D -no existing signal sensing circuits can trigger with those Class D output signals.

For remote turn on signal in the F1x/3x/8x HK system please either use pin 13 in the back of the iDrive unit or the trunk 12V accessory socket if equipped. This harness does not replace the OEM amp.

Install example: http://www.bimmerfest.com/forums/sho...d.php?t=834774

Shipping is 4-5 business days after payment. No shipping on weekends. Tracking information will be provided by PayPal via email once order is shipped. Shipping requires that your shipping address is the one listed on your PayPal account, please. No shipping to any other address.

Warranty of harness is one year from purchase date. Harness is designed for experienced DIYers. Professional install suggested. Support limited to harness install; no support given to aftermarket parts not sold with harness kit.

If interested then please provide your PayPal email account address for an invoice.


Regards
Elías

I need to know which OEM audio system is in your F80 before anything can be answered, please.