I will try that. As you said, it’s not a banger!
Back when TRX 1st appeared, saw a YouTube video with a guy who had taken his TRX to an audiophile shop in MD. They used the stock speaker harness to integrate a parametric EQ & added subs/amp under the rear seat. I think they also replaced all the stock speakers, as the guy wanted all Focal & JL Audio equipment. He claimed to have paid $10K, and it sounded “banging”.
I think we could get 95% of his sound with just that EQ, subs & a sub amp…maybe $4-5K, depending on how crazy you get with the subs.