New head unit, what length RCA?

[Chard]

I just got a new head unit with 6 pre-amp RCA outputs (I have the rear shelf & door speakers) and wanted to know what length RCA cables you folks are using to run from the rear of the head unit into the frunk.

I don't want to be short, but I also don't want unnecessary lengths of cable wrapped and tied up.

Thanks in advance!

[Nimbus117]

I used 2.5 metre RCA's on mine.