How to make sure syncing my iPhone doesn't remove content?

I haven't synced my iPhone is several months, but I have downloaded a lot of apps and podcasts from my phone since then. Now I would like to get some songs from my iTunes on my Mac and put it on my phone, but without removing the new apps and podcasts to match where the computer is. How can I do this?

What to do on a 8 hour road trip?

I'm going on a 8 hour road trip with my cousins (we're gonna meet up with our parents) I'm fifteen, a guy. One is 20, the others are 17 and 15. They are girls who are pretty. We all thought I should ride with them since we don't know each other that well and they and our parents agreed we should road trip to Southern California (Palm Springs) and meet up with our parents. This trip isn't until the end of the month but we should get some ideas so we're prepared. I have my iPod Touch 5th Gen (I use for music), my iPhone 4S (with games and cellular), laptop with movies American Graffiti, Back To The Future, Smokey And The Bandit, and Ferris Bueller's Day Off tv shows: Top Gear UK, Top Gear USA, King Of The Hill, and Family Guy. The bands on my iPod are: CCR, AC/DC, Kid Rock, Jerry Lee Lewis, Kenny Loggings, Duran Duran, Van Halen, Little Richard, Del Shannon, Lynyrd Skynyrd, Rolling Stones, The Who, Bryan Adams, Don McLean, ZZ Top, Johnny Cash, etc. My cousins car does have the USB Port and she said I can hook my phone up to it. What can we all do together? (I'm fifteen, a guy, and the one my age is 15, then there's a 17, and a 20yr old they are girls)

My screen o my iPhone cracked?

So my screen of my iPhone 6 cracked because I dropped it by accident… I do have insurance on it… But they still want me to pay 90 dollars for it. But it's too much… Do you guys know where anywhere they fix iPhones for less? Or where they can ship me a new phone? I'm with Verizon btw… My phone still works though it's just cracked )

What is the best dash-cam app for an iPhone?

I'm going to save up for a proper dash-cam, but in the meantime want to put my old iPhone to good use again. So I'm going to use that as a dash-cam for now.

Does anyone know any good apps which give speed and time?

Why is my Apple Logo raised and fake looking?

I had an iPhone 6 plus, and it broke, warranty replacement / phone defect, and I got a new 6 plus. The logo on the back of my old iPhone was perfect. The logo on this new iPhone feels fake and its raised oddly. Why?

What is the song? (house mix)?

I've heard this song many times at the club and Shazam can't find it. It's a female vocal and I can hear parts of lyryc like "soon so bad, soon so better, better" or something like that. I'll really appreciate any help. Here's a voice memo made on my iPhone: vocaroo.com/i/s14f8LaVMN63

Why is my T-Mobile bill so high?

I got service with T-Mobile recently and it was a plan for a family of 4. The guy who helped us out gave us a plan for 10gb each for 120$ all 4 plus I got an iPhone 6s which he said was 27 monthly with a 10 dollar protection thing. I payed 107 for activation for the 4 lines and the new phone. At the end he said we were going to pay 160$ all together monthly plus taxes and fees, which we said was pretty good. But now it said our first bill is going to be 181$. Why is my bill so high? I live in Virginia