Hey there taurus64,
As you have several issues occurring, we wanted to help provide some steps that'll help troubleshoot each one:
- For your issue regarding Amazon Music crashing when using the Waze app at the same time, we recommend taking the steps here: If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open
- While you didn't quite describe the issue you're having with CarPlay, this link has some general steps to take for issues involving it: If you need help with CarPlay
Battery life may be less than expected for a short time after updating. This occurs due to it downloading app data, syncing contacts, indexing search results, and completing the digital housekeeping for a new update. We recommend following our battery tips going forward: Batteries - Maximizing Performance
While you may need to monitor the battery life for the same issue after 72 hours from updating, we’d like to rule out some other possible causes:
- Is it being used within its temperature range? Check for the range near the top here: If your iPhone, iPad, or iPod touch gets too hot or too cold
- Any app updates available? Check out: How to manually update apps on your Apple device
- Any error messages showing under Settings > Battery > Battery Health, and is the battery health above 80%? According to the section 'Your battery's maximum capacity' within this link, it's recommend to have your battery replaced if it falls to 80% or below: iPhone Battery and Performance
If you still need help after checking on these details, we recommend letting Apple Support know what's been tried, and they'll be in the best position to assist with this going forward: Get Support
Take care!