Bose without Nav upgrade - Do I need all this?

RonRizz

The only piece you do not need is the line output converter. I can't understand why they tried to sell you that piece, the head unit already has low level outputs.
And to be perfectly honest, I have used these in the past, and if I needed this $20 P.O.S. so my $1200 head unit would function, I would leave the factory stereo in!!

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P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals