Dash protector
 

What can I use to protect the infamous dash cracking? armor all? also what do you guys use for your leather seats?

I don't know about the dash but I started using bag balm for the seats. So far all I did was the passenger side but what I did it looks good. YouTube bag balm for leather seats.

Some over the counter stuff that works good is meguiar's natural shine protectant. Use that regularly and you should be fine. It actually looks nice. I used it on my dad's 02. It darkens the interior a little and leaves a nice sheen. Not that greasy look. You can pick up a bottle at walmart for about $5. On my 02 I used meguiar's ultimate protectant. It gives a higher shine. I like it as well.

For leather seats I just bought meguiar's leather sealer system. So far so good. I use it on my 02 and my dad's 02 as well as my daily driver. It seals the leather and they retain the OEM look.