How do I delete the pre-installed songs?

How can I pre-order the Ford F-150 that's being released on February 25th?

How do you install the gear shift knob on the Roewe?

I want to install an armrest. How do I remove the armrest on the driver's seat? Any advice, folks?

Is there a pre-installed loudspeaker wiring harness and plug for the rear doors in the 2017 manual version of the Hyundai Reina? I'm considering adding a pair of speakers and would like to know if it's ready for installation.

I would like to ask if there are pre-installed wires for adding loudspeakers in the rear two doors?

How do I install the rear seat cover for the Kia Pegas? Can the headrests be removed?

Can the front radar be installed at the 4S dealership, or do I need to have it installed elsewhere?

How do I delete the pre-installed songs?

How's the interior of this car? Do I need to install the ambient lights myself?

I'm torn between the Song L and Song Plus. I'm leaning more towards the Song L, but I noticed that the Song L has a metal fuel tank, while the Song Plus has a plastic one. It seems like the plastic fuel tank might be safer. What do you all think?